Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Zinc and carbon Lead peroxide and lead Iron and cadmium Nickel and cadmium Zinc and carbon Lead peroxide and lead Iron and cadmium Nickel and cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lustre of the metals is because of Reflection of light due to the presence of free electrons High polish High density, due to closed packing of atoms Absorption of light due to the presence of cavities Reflection of light due to the presence of free electrons High polish High density, due to closed packing of atoms Absorption of light due to the presence of cavities ANSWER DOWNLOAD EXAMIANS APP
Chemistry The residue left after extracting juice from sugarbeet and sugarcane is called Biomass Molasses Bagasse Whey Biomass Molasses Bagasse Whey ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid present in red ants is Butyric acid Caproic acid Acetic acid Formic acid Butyric acid Caproic acid Acetic acid Formic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of fertilizers ? Lead Fluorine Aluminium Potassium Lead Fluorine Aluminium Potassium ANSWER DOWNLOAD EXAMIANS APP
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